100304431 has 2 divisors, whose sum is σ = 100304432. Its totient is φ = 100304430.

The previous prime is 100304429. The next prime is 100304443. The reversal of 100304431 is 134403001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100304431 - 2¹ = 100304429 is a prime.

It is a super-2 number, since 2×100304431² = 20121957756467522, which contains 22 as substring.

Together with 100304429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100304531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50152215 + 50152216.

It is an arithmetic number, because the mean of its divisors is an integer number (50152216).

Almost surely, 2^100304431 is an apocalyptic number.

100304431 is a deficient number, since it is larger than the sum of its proper divisors (1).

100304431 is an equidigital number, since it uses as much as digits as its factorization.

100304431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100304431 is about 10015.2099828211. The cubic root of 100304431 is about 464.6294207067.

Adding to 100304431 its reverse (134403001), we get a palindrome (234707432).

The spelling of 100304431 in words is "one hundred million, three hundred four thousand, four hundred thirty-one".